Seems quite plausible that Bitcoin will implode this coming March 13/14 or shortly thereafter, and when Bitcoin gets a flu, the altcoins go no bid and collapse.
Still, the digital currency experienced sharp gyrations this week amid news that the network was exceeding its capacity for transactions, a development that resulted in users paying sometimes substantially higher fees.
Bear in mind this revelation (click the link in the quote below) which I had predicted as well was the motivation for 51% attack of the Chinese mining cartel which blocked any block size increase: